Actor Hayden Christensen is joining Bruce Willis in the action thriller "First Kill," directed by Steven C. Miller. Written by Nick Gordon, the plot revolves around a police chief - played by Willis - who investigates a case involving a bank robber who's holding a young boy hostage. Christensen will play the boy's father. "First Kill" will be the first project in a two-picture deal that Christensen just signed with Emmett/Furla/Oasis, who will produce, finance and release the picture through a deal with Lionsgate Premiere.